Supplementary data for the article: Stefanović, V.; Trifković, J.; Mutić, J.; Tešić, Ž. Metal Accumulation Capacity of Parasol Mushroom (Macrolepiota Procera) from Rasina Region (Serbia). Environ. Sci. Pollut. Res. 2016, 23 (13), 13178–13190. https://doi.org/10.1007/s11356-016-6486-7

Supplementary material for: [https://doi.org/10.1007/s11356-016-6486-7]Related to published version: [http://cherry.chem.bg.ac.rs/handle/123456789/2271

Vjerojatnost ispada koreliranih SIR prijemnika sa SSC raznolikosti putem kanala s kompozitnim K_G slabljenjem/zasjenjivanjem signala

In this paper, the effects of multipath fading and shadowing over the propagation channel are observed through the performance analysis of switch and stay selection combining (SSC) technique. The short term fading (multipath fading) in conjunction with the long term fading (shadowing) are both modeled by Generalized-K (K_G) distribution. The proposed system is considered as interference-limited system in correlated fading environment. The probability density function (PDF) of signal-to-interference ratio (SIR) at the output of SSC receiver is derived in form of Meijer G functions. According to this new expression, the outage probability is considered and the effects of fading and shadowing parameters and correlation coefficients on the performance gain are analyzed.U radu su razmatrana djelovanja višeputnog slabljenja i zasjenjivanja signala u propagacijskom kanalu pomoću analize SSC prijemnika raznolikosti (prekidački prostorni kombinator raznolikosti). Kompozitni utjecaj brzog (višeputnog) i sporog slabljenja signala (zasjenjivanja) modeliran je poopćenom-K (K_G) razdiobom. Predloženi sustav razmatran je kao sustav s ko-kanalnom interferencijom kao dominantnom smetnjom i koreliranim slabljenjem signala. Funkcija gustoće razdiobe (PDF) odnosa signal/smetnja (SIR) SSC izlaza prijemnika izvedena je u obliku Meijer G funkcija. Na osnovu ovog izraza, razmatra se vjerojatnost ispada te analiziraju učinci parametara i korelacijskih koeficijenata slabljenja i zasjenjivanja signala na unaprijeđenje performansi sustava

Supplementary material for the article: Stefanović, V.; Trifković, J.; Djurdjić, S.; Vukojević, V.; Tešić, Ž.; Mutić, J. Study of Silver, Selenium and Arsenic Concentration in Wild Edible Mushroom Macrolepiota Procera, Health Benefit and Risk. Environmental Science and Pollution Research 2016, 23 (21), 22084–22098. https://doi.org/10.1007/s11356-016-7450-2

Supplementary material for: [https://doi.org/10.1007/s11356-016-7450-2]Related to published version: [http://cherry.chem.bg.ac.rs/handle/123456789/2348

Rodna analiza nastavnih programa i udžbenika za srpski jezik od prvog do četvrtog razreda osnovne škole

Analitička pažnja u ovom istraživanju usmerena je na Srpski jezik kao nastavni predmet u osnovnoj školi s ciljem da se ispita uključenost rodne perspektive u nastavne planove i programe i udžbenike za ovaj predmet, te da se ponude preporuke relevantnim akterima radi unapređenja stanja u datoj oblasti. Krajnji cilj je uticaj na sadržaj i kvalitet obrazovnog procesa u pravcu eliminacije rodnih stereotipa i predrasuda, kao i obogaćivanje nastavnih programa i udžbenika sadržajima koji se odnose na promovisanje koncepta rodne ravnopravnosti

Noncanonical DNA elements in the lamin B2 origin of DNA replication

DNA replication origins of eukaryotes lack linear replicator elements but contain short (dT)(n) (dA)(n) sequences that could build mutually equivalent unorthodox structures. Here we report that the lamin B2 origin of DNA replication adopts an alternative form characterized by unpaired regions CTTTTTTTTTTCC/GGAAAAAAAAAAG (3900-3912) and CCTTTTTTTTC/GAAAAAAAAGG (4141-4151). Both unpaired regions are resistant to DNase and except in central parts of their homopyrimidine strands are sensitive to single strand-specific chemicals. Interactions that protect central pyrimidines probably stabilize the bubble-like areas. Because DNA fragments containing either one or both bubbles migrate in TBM (89 mM Tris base, 89 mM boric acid, and 2 mM MgCl2) PAGE even faster than expected from their linear size, interacting regions are expected to belong to the same molecule. In an origin fragment containing a single bubble, free homopyrimidine strand can only interact with Hoogsteen hydrogen bonding surfaces from a complementary double stranded sequence. Indeed, this origin fragment reacts with triplex preferring antibody. In competition binding experiments control double stranded DNA or single stranded (dT) 40 do not affect origin-antibody interaction, whereas TAT and GGC triplexes exert competitive effect. Because the chosen fragment does not contain potential GGC forming sequences, these experiments confirm that the lamin B2 origin adopts a structure partly composed of intramolecular TAT triads

Supplementary data for the article: Stefanović, V.; Trifković, J.; Mutić, J.; Tešić, Ž. Metal Accumulation Capacity of Parasol Mushroom (Macrolepiota Procera) from Rasina Region (Serbia). Environ. Sci. Pollut. Res. 2016, 23 (13), 13178–13190. https://doi.org/10.1007/s11356-016-6486-7

Supplementary material for: [https://doi.org/10.1007/s11356-016-6486-7]Related to published version: [http://cherry.chem.bg.ac.rs/handle/123456789/2271

Microbiological indoor air quality in faculty's rooms: Risks on students' health

This study deals with a quantitative and qualitative analysis of indoor airborne microbiota and estimation of microbiological quality of indoor air in faculty's rooms during the summer semester of 2017/18 school year. The concentration of bacteria was significantly higher than the concentration of fungi. The species that belong to human skin microbiota or of environmental origin were identified. According to indoor air quality breakpoints, low to medium/high level of bacterial and fungal air contaminations was noticed.Publishe

Synergistic antibacterial activity of Curcuma longa L. and Urtica dioica L. extracts and preservatives

Curcuma longa L. (turmeric) and Urtica dioica L. (common nettle) are well-known medicinal plants. In recent decades, due to its excellent biological activity and low toxicity, significant efforts have been made to research the potential application of these plants. Accordingly, the aim of this study was to investigate the combined effects of preservatives (potassium nitrite and sodium nitrite) and ethanol, acetone, and ethyl acetate extracts of C. longa and U. dioica emphasizing their join, synergistic effects. The eight isolates of foodborne pathogenic bacteria and two reference strains were used. The interactions were tested by the checkerboard method and expressed as fractional inhibitory concentration (FIC) index. FIC index was ranged in intervals from 0.25 to 2.0. The extracts of C. longa showed better synergistic effect with preservatives than U. dioica extracts. Synergism was observed in relation to Staphylococcus aureus ATCC 25923, S. aureus, Bacillus subtilis, and Salmonella typhimurium. In the presence of subinhibitory concentrations (1/4 MIC, 1/8 MIC) of the extracts, the MICs of preservatives have decreased up to 8-fold. In addition, the contents of phenolic compounds (total phenols, flavonoids, tannins, and proanthocyanidins) were determined spectrophotometrically. The higher concentration of phenolic compounds was detected in C. longa extracts than in U. dioica extracts.Publishe